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发明名称
BY-PASS DEVICE OF SCRAPER-PLOUGH MACHINE
摘要
申请公布号
SU857477(A1)
申请公布日期
1981.08.23
申请号
SU19742022083
申请日期
1974.05.12
申请人
VOROSHILOVGRADSKIJ SHAKHTINSKOGO NI PK UGOLNOGO I IM. A.M.TERPIGOREVA
发明人
VENGER FEDOR I,SU;TSELYUTIN ANATOLIJ I,SU
分类号
E21C27/32;E21C27/42;(IPC1-7):E21C27/32
主分类号
E21C27/32
代理机构
代理人
主权项
地址
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